The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 04, 1986
Filed:
Jan. 27, 1984
Applicant:
Inventor:
John A van Raalte, Princeton, NJ (US);
Assignee:
RCA Corporation, Princeton, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358107 ; 358101 ;
Abstract
An apparatus and method is shown for measuring the shoe length of a video disc stylus and displaying a digital representation of the measured value in standard units of length for viewing by a human observer. The apparatus utilizes a video slicer for providing a selectively positionable sampling line on the screen of a monitor which displays an image of the part to be measured. The sampling line is positioned directly over the part to be measured and a signal is generated having a pulse amplitude corresponding to the brightness of the image only along the sampling line, and having a pulse width corresponding to the length of the image along the sampling line.